CN103621067B - Method and apparatus for transmission/reception media content in multimedia system - Google Patents
Method and apparatus for transmission/reception media content in multimedia system Download PDFInfo
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- CN103621067B CN103621067B CN201280029677.7A CN201280029677A CN103621067B CN 103621067 B CN103621067 B CN 103621067B CN 201280029677 A CN201280029677 A CN 201280029677A CN 103621067 B CN103621067 B CN 103621067B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23605—Creation or processing of packetized elementary streams [PES]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/402—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel non-real time sessions, e.g. downloading a file in a parallel FTP session, initiating an email or combinational services
- H04L65/4025—Support for services or applications wherein the services involve a main real-time session and one or more additional parallel non-real time sessions, e.g. downloading a file in a parallel FTP session, initiating an email or combinational services where none of the additional parallel sessions is real time or time sensitive, e.g. downloading a file in a parallel FTP session, initiating an email or combinational services
Abstract
Provide a kind of method and apparatus of the transmission in multimedia system/reception media content.This method includes determining the delivery unit for transmitting at least one multimedia sources related with media content, the data flow of header information and at least one multimedia sources is included according to the generation of identified delivery unit, and send data flow by communication network.
Description
Technical field
The present invention relates to the method and apparatus for being sent in multimedia system and/or receiving media content.More specifically
For, the present invention relates to for using various delivery units come the method and apparatus that send and/or receive media content.
Background technology
Due to the increase of the content of multimedia as obtained by internet and communication network, and the development of technology recently,
Mixed-media content including various types of content of multimedia is issued for watching, listening to, using and consuming at the same time, wherein
Single or two or more multimedia sources are used.Mixed-media content may include various types of content of multimedia.Mixing
Media content is generated by the way that mixed-media content is separated into individual content of multimedia.
For example, mixed-media content can utilize a kind of application to realize, the application e.g. widget（widget）,
It is the image of mixed-media content for construction, which includes video data, view data, voice data and spy
Fixed moving image, and these video datas, view data, voice data and specific moving image are according to every kind of media
Characteristic pass through image signal coding method, voice signal coding method, file compression method or other similar data and generate
Method generates, and each content of multimedia is reconfigured as mixed-media content in recipient.
As described above, traditional mixed-media content is separated into multiple content of multimedia and with separated shape in sender
Formula is provided to recipient.Recipient generates mixed-media content by reconstructing multiple separated content of multimedia.To mixing
The use of media content is carried by being separated into multiple separated content of multimedia and reconstructing multiple separated content of multimedia
Supply.However, due to the increase used to mixed-media content, it is necessary to which a kind of more efficiently generate and send and/or receive
The method of mixed-media content.
Therefore, it is necessary to a kind of system and method, for performing the self diagnosis of equipment, without having from computer or user
Interface manually selects caused inconvenience during self diagnosis project.
The content of the invention
Technical problem
Each aspect of the present invention will at least solve the above problems and/or shortcoming and at least provide as described below excellent
Point.Therefore, an aspect of of the present present invention will provide a kind of for efficiently sending and/or receiving media using various delivery units
The method and apparatus of content.
Another aspect of the present invention to provide it is a kind of be used for using the delivery unit for being suitable for corresponding multi-medium data come
The method and apparatus for sending and/or receiving the mixed-media content for including various multi-medium datas.
Solution to problem
According to an aspect of the present invention, there is provided a kind of method that media content is sent in multimedia system.This method
It is single according to identified transmission including determining the delivery unit for transmitting at least one multimedia sources related with media content
Member generation includes the data flow of header information and at least one multimedia sources, and generated data are sent by communication network
Stream.
According to another aspect of the present invention, there is provided a kind of device for being used to send media content in multimedia system.
The device includes：Transmitting element, for sending data flow by communication network；And controller, for determine be used for transmit with
The delivery unit of the related at least one multimedia sources of media content, for including head according to the generation of identified delivery unit
The data flow of information and at least one multimedia sources, and for controlling the transmission of generated data flow.
According to another aspect of the present invention, there is provided a kind of method that media content is received in multimedia system.The party
Method includes the data flow by communication network reception media content, and the delivery unit of definite media content, according to determining
Delivery unit identification header information, and according to the header information identified in the media including at least one multimedia sources
Hold decoding.
According to another aspect of the present invention, there is provided a kind of device for being used to receive media content in multimedia system.
The device includes：Receiving unit, for receiving the data flow of media content by communication network；And controller, for determining
The delivery unit of media content, header information is identified according to identified delivery unit, and according to the header information identified
Media content including at least one multimedia sources is decoded.
Detailed description by the one exemplary embodiment that the present invention is disclosed below in conjunction with attached drawing, those skilled in the art will be clear
Chu's other aspects of the present invention, advantage and notable feature.
Brief description of the drawings
By following description with reference to the accompanying drawings, above and other aspect, the feature of some one exemplary embodiments of the invention
It will be apparent from advantage, in attached drawing：
Fig. 1 be show according to an exemplary embodiment of the invention be used for in motion characteristics planning（Motion
Picture Experts Group, MPEG）Media transmission（MPEG Media Transport, MMT）In middle processing mixed-media
The figure of the Rotating fields of appearance.
Fig. 2 is the media units shown according to an exemplary embodiment of the invention（Media-Unit, M-Unit, M unit）
Head construction figure.
Fig. 3 is the assets shown according to an exemplary embodiment of the invention（asset）Head construction figure.
Fig. 4 is the dispensing device for being used to generate and send media content shown according to an exemplary embodiment of the invention
The block diagram of construction.
Fig. 5 is the construction for being used to receive the reception device of media content shown according to an exemplary embodiment of the invention
Block diagram.
Fig. 6 be show according to an exemplary embodiment of the invention be configured with multiple sections（slice）Video frame figure.
Fig. 7 is to show that the various delivery units of utilization that are used for according to an exemplary embodiment of the invention send media content
The block diagram of the structure of system.
Fig. 8 is the media fragment unit shown according to an exemplary embodiment of the invention（Media Fragment Unit,
MFU）Construction figure.
Fig. 9 is the figure for the construction for showing M units according to an exemplary embodiment of the invention.
Through each figure, it shall be noted that similar label is used to describe the same or similar element, feature and structure.
Embodiment
The description provided referring to the drawings helps this hair that comprehensive understanding such as claim and its equivalent are limited
Bright one exemplary embodiment.Description includes various details to help to understand, but these details should be considered as simply exemplary
's.Therefore, it will be recognized by those of ordinary skills without departing from the scope and spirit of the present invention, can
The embodiments described herein is made various changes and modifications.In addition, for clarity and conciseness, can omit to known function and
The description of construction.
The term and words used in the following description and claims is not only restricted to literal meaning, and simply by inventor
For making it possible to have clear and consistent understanding for the present invention.Therefore, it will be apparent to those skilled in the art that providing following
Description to the one exemplary embodiment of the present invention simply to illustrate that, rather than in order to limit such as claim and its equivalent institute
The present invention of restriction.
It is appreciated that " one " of singulative includes plural, unless the context clearly dictates otherwise.So as to, for example,
To referring to including being referred to surface as one or more for " assembly surface ".
Hereinafter, by the motion characteristics planning among the technology based on the one exemplary embodiment that can apply the present invention（MPEG）
Media transmission（MMT）Technology come describe the present invention one exemplary embodiment.However, the present invention is not limited thereto, and the present invention shows
Exemplary embodiment may be used on any appropriate or similar technology or communication standard.
Fig. 1 is the layer knot for being used to handle mixed-media content in MMT shown according to an exemplary embodiment of the invention
The figure of structure.
With reference to figure 1, E layers of structure is shown, and E layers include MMT E.3 E.2 layer 107 and MMT be E.1 by layer 105, MMT
Layer 109.
Media codec A101 and media codec B103 is to be used to multi-medium data is decoded and/or encoded
Media codec layer.Media codec A101 and media codec B103 can have the function of different.For example, it is used for
Using characteristic information, for decoded signaling information and on multi-medium data other similar informations as control information with including
Compress the multi-medium data network adaptation layer provided together of digital video（Network Adaptation Layer, NAL）It is single
Member is H.264 codec（It is not shown）In encoder output, and such as compress the multimedia number of digital video etc
According to being H.262 codec（It is not shown）In encoder output.H.264 coding can be held in media codec B103
OK, H.262 coding can perform in media codec A101.However, the present invention is not limited thereto, and H.264 encode can be in matchmaker
Performed in body codec A101.
That is, media codec B103 is able to carry out with the addition of the control of such as characteristic information and signaling information etc
The coding of the multi-medium data of information processed, and media codec A101 is able to carry out only to the coding of multi-medium data.
With reference to figure 1, E.3 layer 105 adds MMT to the encoded multi-medium data come from media codec A101 transmission
Add with the corresponding control information of multi-medium data, such as decode required characteristic information and signaling information, and by multimedia number
According to being delivered to MMT E.2 layer 107.In this case, the information on MMT E.3 layers 105 includes nal unit header and NAL
Cell data, but also including additional header information.
Fig. 6 shows the video frame for being configured with multiple video segments according to an exemplary embodiment of the invention.
With reference to figure 6, the structure of video frame is to be directed to a frame for being shown as the single image of video in special time,
And including multiple sections 601 to 613.In more detail, the single image of video is encoded into seven fritters, they are sections
601st, 603,605,607,609,611 and 613.
That is, multiple sections 601 to 613 are included in the frame shown in the single image of video.Multiple sections
601 to 613 can arrange when filling the frame from left side right direction order, as shown in Figure 6, and can be from upside in downward direction
Arrangement, or can be arranged by any other appropriate mode.For example, multiple sections that single frame includes can be by from the left or right
The frame is filled in lateral right or left side direction or various combinations from the lower or upside direction of side up or down.Multiple sections
601 to 613 can have different length.
The frame of structure with Fig. 6 can be configured as media units（M units or MU）, it is the transmission of mixed-media content
One of unit, including temporal information, importance and various functions information --- random access point that will for example describe --- it
In at least one information, such as control information.In addition, each in the section 601 to 613 that frame includes is independently to solve
Code, and media fragment unit can be configured as（MFU）.
In addition, M units can be defined as independent operation unit, such as maximum framing, or in other words it is picture group
（Group of Pictures, GoP）, wherein data have the subordinate data cell to be recorded.According to this one exemplary embodiment,
When MFU corresponds to a section in frame, a frame is configured as a M unit.In addition, when MFU corresponds to a frame,
M units are configured as the GoP as independent decoding unit.
In view of next generation multimedia broadcast system, video frame may include as the MFU of minimum decoding unit and as bag
Include the M units of the decoding unit of control information.In addition, M units may include single MFU, MFU or one group of MFU of segmentation.Decoder
Control function for each minimal construction unit can be controlled based on control information.In addition, MFU is enter into MMT E.3 layers
105（Referring to Fig. 1）Minimum data unit, and M units be the MMT for the control information for including such as temporal information etc E.3
The output data unit of layer 105.Therefore, this one exemplary embodiment allows MFU the or M units using structuring in more matchmakers of future generation
Efficient media content data is configured in body broadcast system to be used to transmit and store.
MFU according to this one exemplary embodiment be the minimal configuration unit for configuring media content data and including close
In the tectonic information of media content data.Configuration information includes at least one of the following：Indicate each media content number
According to starting point, central point and end point and indicate the identifier of the not subregion of data, for setting media codec
Set information, instruction represent the type information of the type of the data of the information of the form on encoding media, on media content
The precedence informations of data, the point information of starting point for indicating media content data, the size information on media content data,
And information of the instruction on hierarchical coding and the specifying information of multi-viewpoint media codec.The cell size of MFU may indicate that
Can absolute coding and/or decoded unit size.For example, based on from the minimum code as media codec and/or
The data cell of the macro block of decoding unit, video can be segmented into picture, section and access unit.
Fig. 8 is the figure for the construction for showing MFU according to an exemplary embodiment of the invention.
With reference to figure 8, the invention is not restricted to the one exemplary embodiment of Fig. 8 and the construction of shown MFU, MFU can be by a variety of
Appropriate construction and type configure.
As the configuration information on MFU, the unit information being namely included in the output data unit of media coding
Additional header information include the information field 801 to 809 related with MFU in it is at least one.Information field 801 to 809 exists
Hereinafter it is described in more detail.
The designator 801 of MFU includes the configuration information on MFU, and indicates to show the mark whether MFU data are segmented
Will information, and also indicate beginning unit, continuing unit or most end unit among MFU.Data type 802 indicates MFU data
Type, and be the information for the attribute for indicating corresponding MFU data.For example, data type 802 may indicate that the type of data, use
In setting on the information of media codec, the motion prediction information of coding, encoded data, matching somebody with somebody on encoded data
Confidence ceases and other are similar to data.
Decoding order number 803 is used to indicate on being segmented when the flag information of MFU continues.MFU has an incremental number
Code, which is the order information using order for indicating corresponding MFU.In addition, client terminal can be by the use of being used as the corresponding MFU of instruction
The incremental number of the order information using order be used as the information on decoding order.Byte data offset 804 refers to
Show the physical location of the beginning of media data.Length 805 is the information for the length for indicating media data.
Priority（P）806 be the information of the value for the priority for indicating MFU.For example, when priority 806 is " 0 ", it refers to
Show that corresponding MFU does not have prioritized data, and when priority 806 is " 1 ", corresponding MFU has prioritized data.For
In the case of the NAL header parameters of media, priority 806 can be set to " 1 ".Priority 806 is indicated in single medium list
The data of segmentation are prioritized datas in first, so that when prior information is lost, decoding can be interrupted.
Comply with the value that counter 807 indicates compliances MFU countings that can be in absolute coding and/or decoded unit.For example,
When it is " 4 " to comply with the value counted, it is meant that ensuing four MFU are complied with corresponding MFU data.For example, when exist according to
From the four correlation MFU for the MFU for being counted as " 4 " when, the first MFU has count value " 3 ", and the 2nd MFU has count value " 2 ",
Three MFU have count value " 1 ", and most end MFU has count value " 0 ".By the use to complying with counting, as corresponding MFU
When data have mistake, the degree of propagation error may indicate that.
Multi-layer information 808 indicates the identifier, more of the enhancement layer media in the identifier of basic media, layered video coding
Viewpoint media coding and other similar informations.MFU on the information of scalable media coding or multilayer media coding with having
Close.Media codec equipment additional information（Mi）809 be that basis is set in an encoding process using corresponding media codec
The standby information changed.Which show the list on corresponding information or extension information, compiled wherein take into account on respective media
The class of decoder（profile）It is changed with class information or situation that the type of codec is changed.
In addition, E.3 layer 105 generates M units to MMT, for transmitting encoded more matchmakers of coming to from media codec A101
Volume data adds the control information on corresponding multi-medium data, such as decodes required characteristic information and signaling information, and will
Multi-medium data is delivered to MMT E.2 layer 107.The example of control information that above-mentioned M units include will be discussed with reference to figure 9.
Fig. 9 is the figure for the construction for showing M units according to an exemplary embodiment of the invention.
With reference to figure 9, the one exemplary embodiment of M units, and information field 901 to 908 are described below.It is however, of the invention
Not limited to this, and M units can be configured by a variety of appropriate modes and type.
Type 901 is the M element identifier (element ID)s for the configuration information for indicating M units.This expression indicate M units be include it is single
MFU, segmentation MFU, MFU group or multiple access units（Access Unit, AU）Flag information, and also indicate out M units
It is the flag information for starting unit, continuing unit or most end unit.Sequence number 902 indicates when flag information continues.M is mono-
Member has incremental number, which is the information that order is used on it.
The data offset 903 provided with byte is the information for the starting position for indicating M unit media datas, and can
Expressed with length with the header information of M units.Length information 904 indicates the length of M unit media datas.Timing information
The recovery time of 905 instruction M units.Timing information 905 on the recovery time includes decoding time information, expression time information
The timing information similar with other, and expression may include that Network Synchronization temporal information representation and cycle believe including the time
Cease representation.
Random access point（Random Access Point, RAP）The random access point information of the corresponding M units of 906 instructions.
Random representational role can be provided using the video data of RAP906.In the case where providing RAP906, M units include at least one
RAP906 information.In addition, when M units include at least one RAP906 information, RAP is provided and the corresponding a plurality of positions of RAP
Information.According to circumstances, there is provided be sequentially searched the method put accordingly by being inserted into the RAP identification codes of MFU.
Initial media codec information 907 indicates the information of the initial set value on media codec.It can pass through
Corresponding structural information is promoted for the decoded initial setting in media codec.
Counter 908 may include the information and MFU/AU numbers on the permission to multiple MFU.More MFU allow information to indicate
Going out M cell datas includes multiple MFU or MFU, and the number of MFU is indicated when M cell datas include multiple MFU
Mesh.MFU/AU numbers indicate the number of internal data cells when M cell datas include multiple MFU or AU.In addition, MFU/AU is carried
For the relevant position information on data, for accessing corresponding MFU or AU.In addition, corresponding positional information can be by pass
It is used to provide the designator of relevant position information in the header information addition of MFU or AU and is sequentially searched relevant position information
Find.
As described above, MMT E.3 layer 105（Referring to Fig. 1）The multi-medium data that Xiang Congyuan is obtained --- for example compiled from media
Decoder A101 transmits the MFU of coming --- addition control information, and multi-medium data is delivered to MMT E.2 layer 107.Accordingly
Ground, E.2 layer 107 constructs M units to MMT by assembling at least one multi-medium data including added control information.
Control information can be classified into the control information on the control information of MFU and on M units.In addition, on MFU
Control information and in the control information of M units the specifying information of each configuration can be by above in conjunction with Fig. 1,6,8 and 9
The mode of description configures.In addition, control information can be added to header information by various forms.Retouched below with reference to Fig. 1
State the one exemplary embodiment of the configuration on the head of M units.
The MMT of Fig. 1 E.2 layer 107 by assemble from from multimedia sources one or more multi-medium datas provide it is each
The MFU of aggregation is simultaneously configured to M units to generate MMT asset datas, hereinafter referred to as assets by the MFU of type.Pass through reception
According to the input of the cellular construction of the attribute of various types of multimedia sources, MMT assets are configured to mixed-media content, wherein
Multimedia sources i.e. multi-medium data, are, for example, video data, voice data, text data, file data, widget
Data, using the data data similar with other.Assets include one or more MMT M cell datas, and each of which is a M
Unit, that is, one group of above-mentioned NAL unit so that MMT M cell datas with it is distinguishable from each other.MMT E.2 107 bases of layer
Necessary to the transmission of mixed-media content information or the mixed of asset form is generated on the attribute information of multi-medium data
Close media content.Here, " group " is understood to be the unit of the encoded and/or decoded information in multimedia system.
M units as the data group including the information unit with identical characteristic information are by being used as above-mentioned coding
The NAL unit data of the output of device add the bells and whistles information needed for the generation of mixed-media content to generate.Additional spy
Property information example include as the characteristic of file or widget data without damage information, and the spy as media data
Property loss allow and delay information.Configure and generate the M units as the group of identical characteristics unit.The MMT of Fig. 1 E.1 layers
109 from MMT, E.2 layer 107 transmits next one or more Asset Allocations as MMT parcels workable for user.
Fig. 2 is the figure of the construction on the head for showing M units according to an exemplary embodiment of the invention.
With reference to figure 2, field that the heads of the M units being described below in Fig. 2 includes.
M element identifier (element ID)s（ID）201 be the identifier for determining the type of M units.Sequence number 203 is according to M units
Function instruction order.Sequence number 203 can be used for the function of the order rearrangement according to the media representation time, such as transmission loss weight
Pass request or media F.F. reproduction and random access.
Type 205 indicates the type of the data of M units.Type 205 may indicate that the characteristic information on data group, Yi Jikao
Consider the file attributes of the proportion of goods damageds, for the delay information of media representation or other similar characteristics and information.Although in Fig. 2
In be not shown, but the payload for being loaded with the data of M units thereon is included in the rear of header information in other words in head
After portion, so that the multimedia number of each introduces a collection with such as video, audio, text, file and widget etc
According to can be transmitted.Correspondingly, type 205 may indicate that the type of the content transmitted together with the head of M units.
Type 205 may include three bit fields for indicating type so that 000 indicates H.264 video, and 001 indicates AAC audios,
002 instruction text, 003 instruction application, 004 instruction webpage, signaling of 005 instruction for codec, 006 instruction are used for component
Signaling, and 007 be reserved for future use.The supplier of mixed-media content can be by using predetermined in preset range
Value indicates the type of appropriate content.Another example of type 205 can be following situation：000 indicates H.264I frame, and 001 refers to
Show H.264B frame, and 002 indicates H.264P frame and available for the method to specific multimedia each introduces a collection assigned priority.
Service quality is contemplated that when transmitting multi-medium data based on priority（Quality of Service, QoS）.
Slice unit（Fragment Unit, FU）Mark 207 indicates the information of the M units on continuity.The value of FU marks
Indicate that corresponding M units are combined, being segmented or single M units.Time tag 209 indicates corresponding M units
Including temporal information.GoP211 indicates that corresponding M units include the information on its GoP unit.When including GoP211,
The value of GoP211 indicates that corresponding M units have single AU or multiple AU.Although being not shown in fig. 2, the instruction of MFU scopes
Go out the value of one group of MFU.Set of spatial parameters（Spatial Parameter Set, SPS）213 indicate that M units include spatial parameter
Collect information.SPS213 indicates the information of the locus of the data on showing corresponding M units.Parameter set is presented
（Presentation Parameter Set, PPS）215 indicate that M units include PPS information.PPS215 is to be used for encoding and decoding
Device initialization information and include the specifying information on media codec.In addition, SPS213 and PPS215 uses media
The general value of the initiation parameter collection of coding.
Synchronous 217 indicate that corresponding M units include synchronically controlling information.Synchronous 217 be multiple M for combined treatment
The data being mutually in step between unit, and be for example utilized as being used for 3-dimensional（3D）The right side of image（R）The M units of image
An and left side（L）Sync mark between the M units of image.In addition, synchronous 217 can be used for assigning order between corresponding M units
Information.Command information is the control information for corresponding M units, and can indicate that corresponding M units correspond to and such as add
Add, delete, replacing or the information of fresh information etc.Synchronizing information can be used as being only used for transmitting by mixing based on command information
The control information of M units in the same session of transmission of network.
Transmission characteristic（Transport Characteristic, TC）219 indicate that M units include transmission characteristic information.
TC219 be used for transmit corresponding M units and for example indicate the proportion of goods damageds, time delay, the parity information for Error Resiliency,
The mean bit rate and Maximum Bit Rate of data transmission.RAP221 indicates that corresponding M units are included for random access
Flag information.According to the presence or absence accordingly indicated, it is possible to provide such as functional configuration of F.F. reproduction etc.
Fig. 2 shows the construction on the head of M units.However, the present invention is not limited thereto, according to the one exemplary embodiment of Fig. 2
The constructions on head of M units can have other appropriate forms and construction.For example, the construction on the head of M units may include to join
Examine multiple header informations for including of head of the M units of Fig. 2 descriptions and/or in the MMT of Fig. 1 E.3 description of layer 105
Generate M units when add multiple control information one or more of information combination.
Fig. 3 is the figure of the construction on the head for showing assets according to an exemplary embodiment of the invention.
With reference to figure 3, the assets according to this one exemplary embodiment are the various multi-medium datas according to source of media with including extremely
The structural generation of a few M unit, and it is understood to include the data flow of the various multi-medium datas of source of media.Also
It is to say, each multimedia sources are generated as MFU or M units, and assets include at least one M units.
Table 1 shows the example of M units, assets and MFU.
[table 1]
In table 1, offset refers to byte data offset information.
In more detail, Fig. 3 is shown when the MMT of Fig. 1 is used when E.2 layer 107 generates assets using the input of M units
The header information on assets example, the wherein M units are the same alike result information of various types of multi-medium datas
The data of poly group.In addition, the head of the assets of Fig. 3 can indicate that the unit group of the M units spatially continued.Asset ID 301 refers to
The identifier of corresponding continuous data is shown.Asset ID 301 is on corresponding assets during mixed-media content is generated
Identification information.
Assets length information 303,305,307 and 311 indicates the length of the data of corresponding assets.Assets length information
303rd, 305,307 and 311 can be set with view of ultra high-definition（Ultra Definition, UD）Video data it is abundant
Long length.For convenience's sake, assets length information 303,305,307 and 311 separately indicates in three regions.So
And the present invention is not limited thereto, assets length information 303,305,307 and 311 can be a field or any proper number
Field.
Asset Type 309 indicates the data type of corresponding assets, and can by with identical mode described in reference diagram 1
Use the data type of above-mentioned M units in Fig. 1.However, in addition to the method described above, multimedia class can be also indicated according to various methods
Type.For example, the type of the first multimedia sources can be directly notified, to prevent the title merely with representative multimedia sources to more matchmakers
The inaccurate decoding in body source, this is because recent various class and to audio codec, Video Codec or it is various should
Use.For example, there is about 10 class class in h .264, thus when simply by H.264 to notify Asset Type when,
Can generated error in decoding process.In addition, when multiple multi-medium datas are re-used and are wrapped up for configuring MMT, use
Asset Type with longer length.
In addition, for example, the Asset Type of the length with 13 bits may conform to the data type of M units, and it can lead to
Cross and according to circumstances come to assets addition extension flag according to corresponding priority indication additional information.H.264 for example, based on
In the case of " 00000000 ", the I frames in image H.264 can be indicated that its B frame can be indicated by " 010 ", and its P by " 001 "
Frame can be indicated by " 100 ".Transmission for ensureing maximum QoS in the sender for sending M units can be considered based on the priority
Priority.
M unit control information head length 313 indicates the M unit control information head indicated in corresponding payload
Length, and notify exist equal to M unit control information head length M unit control information data.M units control letter
Breath 315 includes at least one of the following：Synchronizing information and assets command information（For adding, deleting, being inserted into, updating
With the order of replacement, mixing transmission network is considered）, as the time scale of the Elementary Time Unit of corresponding asset data group, it is
Transfer data set instruction transfer rate, the proportion of goods damageds, delay allow the time, Maximum Bit Rate, mean bit rate, whether guaranteed qos
And the transmission characteristic information of other similar informations, the number for the M units that the data groups of corresponding assets includes, and on
The additional information of RAP.
Although the head of the length-specific with such as 1 bit or 2 bits etc has been described for describing each show
The example of the difference of exemplary embodiment, but the head of M units and/or assets with other length can also be used.In addition, work as
When the field as described in above in an exemplary embodiment is used in the case of without considering length, the configuration of M units and/or assets
Method can be completed according to an exemplary embodiment of the invention in the case of without considering length, such as institute in one exemplary embodiment
State.
The identifier or data type of assets according to an exemplary embodiment of the invention may indicate that to be wrapped in the M units of assets
The type of the multi-medium data of the source of media included.For example, the identifier or data type of assets may indicate that assets are on video
Data, voice data, or assets include multiple multimedia sources, such as video data, voice data, file data, window
The data of widget data or any other similar type.In addition, the identifier or data type of M units may indicate that corresponding M is mono-
Video data that member includes, voice data, file data, the widget with data type, i.e. multimedia sources.
Fig. 7 is to show that the various delivery units of utilization that are used for according to an exemplary embodiment of the invention send media content
The block diagram of the structure of system.
With reference to figure 7, the structure of data flow can be classified into for transmit the real time data that is closely related with real-time broadcast and
The structure of the streaming payload 701 of time, and can also be classified into for transmitting non-real-time data --- such as file
Transmission --- file transmit payload 703.In addition, in streaming payload 701, using MMT M units or MMT
MFU configures and transmits media content as the basic transmission unit that real time data transmits.
MFU705 is the elementary cell for handling the multi-medium data inputted from codec or application source.MFU705 can
To be the multiple one in the block included in one image in image or Video Codec, and can be file ---
Such as using --- in a blocks of files.In addition, MFU705 can be the elementary cell as data transmission or application drive
MMT M units 707.For example, a M unit 707 can be constructed using one group of several AU, these AU are video multimedia numbers
According to the delivery unit of the data of one image of middle configuration.By the configuration of M units 707, user can perform F.F. search or whole
Searched in a video.
In addition, M units 707 can be configured as a MMT assets 709.In addition, MMT assets 709 can be independent video counts
According to one of, voice data or subtitle.One group of various types of MMT assets 709 can be capable of providing in hybrid multimedia
The MMT parcels 711 of appearance.In addition, the data flow for file transmission be used to transmit non-real-time data, and delivery unit can be with
It is the whole or specific part of the MMT parcels 711 of MMT assets 709 or mixed-media content.
As described above, it is used for according to the one exemplary embodiment of Fig. 7 in the structure for transmitting media content in media
The unit for holding coding can be MFU705 or M units 707.Can be independently in the case of decoded video, MFU705 refers to using
Refer in a frame of coding or when frame includes multiple sections one of multiple sections.In addition, can independently decoded it regard
In the case of frequency, M units 707 are referred to for frame of coding or for coding as can independent decoding unit
GoP。
The delivery unit of media content can determine in the case of in view of the attribute of media and service.Assets 709 are
With the stream of the continuous N unit 707 of same media type configuration.Parcel 711 is a kind of shape of single assets or one group of multiple assets
Formula, and may include additional information, i.e. the image configurations information time of mixed-media, consider space layout order and hybrid network
The transmission environmental information of network environment, desired transmission bandwidth, loss probability, about whether the information for allowing time delay or
Any other appropriate or similar information on service.
Fig. 4 is the dispensing device for being used to generate and send media content shown according to an exemplary embodiment of the invention
The block diagram of construction.
With reference to figure 4, dispensing device includes multimedia sources input unit 401, multimedia sources recognition unit 403, multimedia sources
Storage unit 405, transmitting element 407 and controller 409.The dispensing device of Fig. 4 supports the various transmission lists described with reference to figure 7
Member, according to the structure of the streaming for transmitting real time data and for transmit the structure that the file of non-real-time data transmits come it is true
Determine delivery unit, and according to identified delivery unit by one or more multimedia sources be configured to MFU, M unit, assets or
Parcel is used as delivery unit, and sends them like this.The input that multimedia sources input unit 401 receives M units is used as giving birth to
Into the multimedia sources of mixed-media content, the wherein M units are one group of various types of multi-medium datas.Multimedia sources identification is single
Member 403 assigns Asset ID to the M units group as multimedia sources, identifies the types of multimedia sources, for example, speech source, video source,
File performs file, and assigns corresponding Asset ID to M units group.Here, an assets may include multiple M units, these M
Unit includes various multimedia sources.Multimedia sources storage unit 405 stores generated assets according to the collocation method of assets.Hair
Unit 407 is sent to send one or more assets by communication network.Controller 409 is by assembling one or more from multimedia sources
Various types of MFU that a multi-medium data provides configure M units, and perform for generate and send MFU, M unit and
The general control of assets.
Fig. 5 is the construction for being used to receive the reception device of media content shown according to an exemplary embodiment of the invention
Block diagram.
With reference to figure 5, reception device includes receiving unit 501, multimedia sources reading unit 503, multimedia sources storage unit
505th, display unit 507 and controller 509.The reception device of Fig. 5 supports the various delivery units with reference to the description of figure 7, according to
Pass through in the structure of the streaming of transmission real time data and the structure determination of the file transmission for transmitting non-real-time data corresponding
Delivery unit receive media content delivery unit, identify the header information on delivery unit, and solution is performed to it
Code.The receiving unit 501 of Fig. 5 is received by communication network according to the various multi-medium datas of multimedia sources includes one or more
The assets of M units --- including one or more MFU ---, and header information on assets and on M units
Header information is passed to controller 509 for receiving the decoding of control and mixed-media content.In addition, the profit of controller 509
It is with the control information on MFU and related with receiving the decode for mixed-media content to perform on the control information of M units
General control.
Multimedia sources reading unit 503 based on from receive on the controller 509 of assets and each information of M units transmit come
Control information --- including control information on MFU --- data class of each multimedia sources is read in units of M units
Type, and classify to the multimedia sources of each reading and store it in Src StUnit 505.The controller 509 of Fig. 5 for
The reception of assets and the reading of multimedia sources and decoding perform general control, and the data of decoded multimedia sources pass through
Display unit 507 is output.
Therefore, one exemplary embodiment here described above can provide for utilizing such as MFU, M unit, assets or bag
The various delivery units wrapped up in etc are come the apparatus and method that send and/or receive media content.In addition, exemplary implementation here
Example, which can provide for efficiently generating and sending and/or receive, includes various types of multimedia sources --- i.e. multimedia number
According to --- mixed-media content apparatus and method.In addition, one exemplary embodiment here is sending or is storing multimedia number
According to when can suitably to predefined size multi-medium data be segmented.
In addition, when one exemplary embodiment here can easily identify position or the transmission of M units in multimedia system
Between point be used as control information, M units are the decoding units for including at least one of time, importance and various functions information,
Here one exemplary embodiment also efficiently notifies the form of assets using appropriate mode, and assets are mixed-media contents
A kind of form.In addition, one exemplary embodiment here can efficiently notify the type of assets in multimedia system.
Although the present invention, those skilled in the art have shown and described with reference to some one exemplary embodiments of the present invention
It will be understood that in the case where not departing from the spirit and scope of the present invention limited such as the following claims and their equivalents, can
The various changes in form and details are carried out to it.
Claims (6)
1. a kind of method for being used to send media bag in multimedia system, this method include：
Generation includes the data cell of media data, and wherein data cell includes at least one subelement, and data cell quilt
It is independently processed from；And
Sending includes the media bag of at least one subelement, and
Wherein, the subelement of the data cell includes count value, the count value instruction complied with the data cell in
The subelement handles the number of its decoded at least one follow-up subelement, and
Wherein, the subelement includes indicating that the subelement is relative to the priority of another subelement in the data cell
Information, and
Wherein media bag includes the designator of one of instruction the following：
Media bag includes one or more complete subunits,
Media bag includes the first fragment of subelement,
Media bag includes the last fragment of subelement, or
It is that media bag includes subelement neither the first fragment is nor the fragment of last fragment.
2. the method for claim 1, wherein if the part for the media data that the data cell includes is non-fixed
When data, then the data cell include the information for indicating the type of the media data.
3. the method for claim 1, wherein the subelement is the media fragment as the fragment of the data cell
Unit (MFU), and
Wherein, the head of the subelement includes the information of the decoding order of instruction subelement.
4. a kind of device for being used to send media bag in multimedia system, described device include：
Transmitter, is configured as sending media bag；And
Controller, be configured for control with：
Generation includes the data cell of media data, and wherein data cell includes at least one subelement, and data cell quilt
It is independently processed from；And
Sending includes the media bag of at least one subelement, and
Wherein, the subelement of the data cell includes count value, the count value instruction complied with the data cell in
The subelement handles the number of its decoded at least one follow-up subelement, and
Wherein, the subelement includes indicating that the subelement is relative to the priority of another subelement in the data cell
Information, and
Wherein media bag includes the designator of one of instruction the following：
Media bag includes one or more complete subunits,
Media bag includes the first fragment of subelement,
Media bag includes the last fragment of subelement, or
It is that media bag includes subelement neither the first fragment is nor the fragment of last fragment.
5. device as claimed in claim 4, wherein, if the part for the media data that the data cell includes is non-fixed
When data, then the data cell include the information for indicating the type of the media data.
6. device as claimed in claim 4, wherein, the subelement is the media fragment as the fragment of the data cell
Unit (MFU), and
Wherein, the head of the subelement includes the information of the decoding order of instruction subelement.
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| KR10-2011-0104862 | 2011-10-13 | ||
| KR1020110104862A KR20120138604A (en) | 2011-06-14 | 2011-10-13 | Method and apparatus for transmitting/receiving hybrid media content in a multimedia system |
| KR1020110125458A KR20120138608A (en) | 2011-06-14 | 2011-11-28 | Method and apparatus for transmitting/receiving hybrid media content in a multimedia system |
| KR10-2011-0125458 | 2011-11-28 | ||
| PCT/KR2012/004666 WO2012173389A2 (en) | 2011-06-14 | 2012-06-13 | Method and apparatus for transmitting/receiving media contents in multimedia system |
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